1303221200123 has 4 divisors (see below), whose sum is σ = 1303576208208. Its totient is φ = 1302866192040.

The previous prime is 1303221200069. The next prime is 1303221200129. The reversal of 1303221200123 is 3210021223031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303221200123 - 2¹⁰ = 1303221199099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303221200095 and 1303221200104.

It is not an unprimeable number, because it can be changed into a prime (1303221200129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177498536 + ... + 177505877.

It is an arithmetic number, because the mean of its divisors is an integer number (325894052052).

Almost surely, 2^{1303221200123} is an apocalyptic number.

1303221200123 is a deficient number, since it is larger than the sum of its proper divisors (355008085).

1303221200123 is an equidigital number, since it uses as much as digits as its factorization.

1303221200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355008084.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1303221200123 its reverse (3210021223031), we get a palindrome (4513242423154).

The spelling of 1303221200123 in words is "one trillion, three hundred three billion, two hundred twenty-one million, two hundred thousand, one hundred twenty-three".